20914204465

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1973}}^1\times {\mathrm{2503}}^1$

素因数の和:4510

約数の個数: 48

約数和(自身を含む): 31555448064

約数和(自身を除く): 10641243599

約数列:

[1, 5, 7, 11, 35, 55, 77, 121, 385, 605, 847, 1973, 2503, 4235, 9865, 12515, 13811, 17521, 21703, 27533, 69055, 87605, 108515, 137665, 151921, 192731, 238733, 302863, 759605, 963655, 1193665, 1514315, 1671131, 2120041, 4938419, 8355655, 10600205, 24692095, 34568933, 54322609, 172844665, 271613045, 380258263, 597548699, 1901291315, 2987743495, 4182840893, 20914204465]

約数ペア:

[(1, 20914204465), (5, 4182840893), (7, 2987743495), (11, 1901291315), (35, 597548699), (55, 380258263), (77, 271613045), (121, 172844665), (385, 54322609), (605, 34568933), (847, 24692095), (1973, 10600205), (2503, 8355655), (4235, 4938419), (9865, 2120041), (12515, 1671131), (13811, 1514315), (17521, 1193665), (21703, 963655), (27533, 759605), (69055, 302863), (87605, 238733), (108515, 192731), (137665, 151921)]